Thomas J. Kraus & Tobias Nicklas 
Das Petrusevangelium und die Petrusapokalypse [PDF ebook] 
Die griechischen Fragmente mit deutscher und englischer Übersetzung (Neutestamentliche Apokryphen I)

The book presents diplomatic transcriptions (in Greek) and translations (in German and English) of all the known textual fragments which can be attributed to what is known as the Gospel of Peter and the Apocalypse of Peter or which scholars are discussing as possible elements of these texts. In addition, the documentation of the texts in ancient times is considered, and there is a brief discussion of the philological problems involved. With concordances.

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